A 100 g sugar solution having concentration 40% (w/w) was divided into two equal parts. In first part, 50 g of sugar was added and was mixed with 20 g of the other part. The concentration of solution so formed is? (1) 65% (2) 45% (3) 58% (4) 35%
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Answer: Option (1)
Explanation: Mass of the sugar = 100g
Mass of the solvent = 250g
Concentration = 40%
According to the question, it was divided into two equal parts,
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